Cited by 42Animal Nutrition and PhysiologyAquaculture Nutrition and GrowthMeat and Animal Product Quality

Microalgae (Chlorella vulgaris and Spirulina platensis) as a Protein Alternative and Their Effects on Productive Performances, Blood Parameters, Protein Digestibility, and Nutritional Value of Laying Hens’ Egg

Open access
Panaite, Tatiana Dumitra, Cornescu, Gabriela Maria, Predescu, Nicoleta Corina, Cismileanu, Ana, Turcu, Raluca Paula, Saracila, Mihaela, Soica, Cristina·2023·Applied Sciences

Abstract

Protein is an essential nutrient for laying hens, playing a crucial role in egg production and supporting their overall health. An 8-week feeding trial was conducted on 120 Lohmann Brown laying hens (aged 38 weeks). The layers were assigned randomly to three groups and housed in cages (twenty replicates × two birds/cage). All groups were fed a corn–soybean meal basal diet (2750 kcal/kg metabolizable energy (ME) with 17.8% crude protein (CP)). In contrast to conventional diet (CON), the experimental groups were supplemented primarily at the expense of soybean meal with 2.0% Chlorella vulgaris (CV2%) and 2.0% Spirulina platensis (SP2%). Their high concentrations of chlorophyll a (5.56; 9.06 mg/g), chlorophyll b (0.88; 1.34 mg/g), and antioxidant activity expressed as 2,2-diphenyl-1-picrylhydrazyl (73.29; 81.27 DPPH% inhibition) improved egg yolk quality. At the end of the trial, eighteen eggs/group (six yolk samples/group, three eggs/sample) were collected to determine the egg quality and nutritional parameters (fatty acids profile, cholesterol, β-carotene, yolk color, and antioxidant capacity). To determine the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH), and total antioxidant capacity (TAC), blood samples were collected at the end of the period. Microalgae inclusion increased (p < 0.05) the fatty acid content, ß-carotene concentration (p < 0.001), antioxidant capacity (p < 0.0001), and yolk color intensity (p < 0.001) significantly, especially the yolk redness a* color parameter, but without any significant results concerning cholesterol concentration. Boiling the eggs for 10 min significantly (p < 0.001) increased the b* color parameter on microalgae treatments. The supplementation of laying hens’ diet with microalgae positively influenced egg quality and nutritional properties.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/app131810451

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Nannochloropsis species excel in producing EPA, a long-chain omega-3 PUFA associated with cognitive support and lipid metabolism regulation.

    “Nannochloropsis species excel in producing EPA, a long-chain omega-3 PUFA associated with cognitive support and lipid metabolism regulation [14,15].”

    From Microalgae Bioactives for Functional Food Innovation and Health Promotion (2025) · cites this paper as [14]

    The Introduction identifies microalgae as sources of EPA, and the Discussion describes omega-3 fatty acids including EPA as brain-protective. The paper does not say that Nannochloropsis species excel at producing EPA or link EPA to regulation of lipid metabolism; Nannochloropsis appears only in a reference title. No page numbers are available in our copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 8

  1. National Research Council. Nutrient Requirements of Poultry, 9th ed.; National Academic Press: Washington, DC, USA, 1994.
  2. AOAC. AOAC final action method 17.002, colour of eggs. J. Assoc. Off. Anal. Chem. 1973, 56, 272.
  3. Abdul-Adel, E.; Saleh, M.M.; Salman, J.M. Biodiesel production by Spirulina platensis under different NaCl concen-trations. Biochem. Cell. Arch. 2020, 20, 1745-1749.
  4. Abou-El-Souod, G.W.; Hassan, L.H.; Morsy, E.M. Comparison of different media formulations and the optimal growing conditions on growth, morphology and chlorophyll content of green alga, chlorella vulgaris. J. Am. Sci. 2016, 12, 86-95.
  5. Khan, F.; Shuvo, A.A.S.; Islam, K.M.S. Effects of dietary inclusion of Spirulina platensis on egg yolk pigmentation. Live Res. Rural. Dev. 2021, 33, 101.
  6. Mariey, Y.A.; Samak, H.R.; Ibrahem, M.A. Effect of using Spirulina platensis algae as a feed additive for poultry diets: 1-productive and reproductive performances oflocal spirulina algae-organic selenium-egg production-heat stress-laying hens. Egypt. Poult. Sci. 2015, 32, 201-215.
  7. Shanmugapriya, B.; Saravanababu, S. Supplementary effect of Spirulinaplatensison performance, hematology andcarcass yield of broiler chickens. Indian Streams Res. J. 2014, 4, 1-7.
  8. Kumar, R.S.P.; Sibi, G. Spirulina as poultry feed supplement to enhance nutritional value of chicken meat and eggs: A review. Int. J. Microbiol. Res. 2020, 11, 67-71.

Cited by

Sorted by citations

Authors
Panaite, T. D., Cornescu, G. M., Predescu, N. C., Cismileanu, A., Turcu, R. P., Saracila, M., & Soica, C.
Affiliations
  • National Research Development Institute for Animal Biology and Nutrition (RO)
  • University of Bucharest (RO)
  • Nutrition Physiology Laboratory, National Research and Development Institute for Biology and Animal Nutrition, 077015 Balotesti, Ilfov, Romania
  • Food and Feed Quality Laboratory, National Research and Development Institute for Biology and Animal Nutrition, 077015 Balotesti, Ilfov, Romania
Corresponding author
Panaite, Tatiana Dumitra
Venue
Applied Sciences
Publisher
MDPI AG
Published
2023-09-19
Volume
13
Issue
18
Pages
10451
ISSN
2076-3417 (ISSN-L)
OpenAlex
W4386849887
Cited by
42
References
57
Citations by year
2026: 13 · 2025: 18 · 2024: 11
FWCI
7.35
Type
journal article
Language
en
Open access
Locations
  • Applied Sciences (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministry of Research, Innovation and Digitalization (PN 23-20 0101, 8PFE/2021)
  • National Research Development Project to Finance Excellence (PN 23-20 0101, 8PFE/2021)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Meat and Animal Product Quality
Keywords
Chlorella vulgaris, Spirulina platensis, microalgae supplementation, laying hens, egg quality, egg nutritional value, egg yolk color, beta-carotene, cholesterol, antioxidant capacity, blood parameters, protein digestibility, soybean meal replacement

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review